/*
 * File      : startup.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006, RT-Thread Develop Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://openlab.rt-thread.com/license/LICENSE
 *
 * Change Logs:
 * Date           Author       Notes
 * 2006-09-23     Bernard      first version
 * 2006-10-05     Bernard      add .nobbs attribute for _svc_stack_start
 */

#include <rtthread.h>
#include <rthw.h>

#include <s3c44b0.h>
#include <board.h>

extern void rt_hw_interrupt_init(void);
extern void rt_serial_init(void);
extern void rt_hw_cpu_icache_enable(void);

/**
 * @addtogroup wh44b0
 */
/*@{*/

#ifdef __CC_ARM
extern int Image$$RW_RAM1$$ZI$$Limit;
#else
extern int __bss_end;
#endif

#ifdef RT_USING_FINSH
extern int finsh_system_init(void);
#endif
extern int  rt_application_init(void);

/**
 * This function will startup RT-Thread RTOS.
 */
void rtthread_startup(void)
{
    /* enable cpu cache */
    rt_hw_cpu_icache_enable();

    /* init hardware interrupt */
    rt_hw_interrupt_init();

    /* init board */
    rt_hw_board_init();

    /* init hardware serial */
    rt_serial_init();

    rt_show_version();

    /* init tick */
    rt_system_tick_init();

    /* init kernel object */
    rt_system_object_init();

    /* init timer system */
    rt_system_timer_init();

    /* init memory system */
#ifdef RT_USING_HEAP
#ifdef __CC_ARM
    rt_system_heap_init((void*)&Image$$RW_RAM1$$ZI$$Limit, (void*)0xD000000);
#else
    rt_system_heap_init((void*)&__bss_end, (void*)0xD000000);
#endif
#endif

    /* init scheduler system */
    rt_system_scheduler_init();

#ifdef RT_USING_HOOK
    /* set idle thread hook */
    rt_thread_idle_sethook(rt_hw_led_flash);
#endif

    /* init application */
    rt_application_init();

#ifdef RT_USING_FINSH
    /* init the finsh input */
    rt_hw_finsh_init();

    /* init finsh */
    finsh_system_init();
#endif

    /* init idle thread */
    rt_thread_idle_init();

    /* unmask interrupt */
    rt_hw_interrupt_umask(INT_GLOBAL);

    /* start scheduler */
    rt_system_scheduler_start();

    /* never reach here */
    return ;
}

int main(void)
{
    /* invoke rtthread startup */
    rtthread_startup();
}

/*@}*/
